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Slightly simplify code in DwarfDebug::beginFunction

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207710 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov 2014-04-30 21:44:17 +00:00
parent d51ae64368
commit b861d48f79
1 changed files with 5 additions and 7 deletions
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12
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1440,9 +1440,8 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) {
Asm->OutStreamer.EmitLabel(FunctionBeginSym); Asm->OutStreamer.EmitLabel(FunctionBeginSym);
// Collect user variables, find the end of the prologue. // Collect user variables, find the end of the prologue.
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end(); I != E; for (const auto &MBB : *MF) {
++I) { for (MachineBasicBlock::const_iterator II = MBB.begin(), IE = MBB.end();
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) { II != IE; ++II) {
const MachineInstr *MI = II; const MachineInstr *MI = II;
if (MI->isDebugValue()) { if (MI->isDebugValue()) {
@ -1454,12 +1453,11 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) {
std::make_pair(Var, SmallVector<const MachineInstr *, 4>())); std::make_pair(Var, SmallVector<const MachineInstr *, 4>()));
if (IterPair.second) if (IterPair.second)
UserVariables.push_back(Var); UserVariables.push_back(Var);
} else { } else if (!MI->getFlag(MachineInstr::FrameSetup) &&
PrologEndLoc.isUnknown() && !MI->getDebugLoc().isUnknown()) {
// First known non-DBG_VALUE and non-frame setup location marks // First known non-DBG_VALUE and non-frame setup location marks
// the beginning of the function body. // the beginning of the function body.
if (!MI->getFlag(MachineInstr::FrameSetup) && PrologEndLoc = MI->getDebugLoc();
(PrologEndLoc.isUnknown() && !MI->getDebugLoc().isUnknown()))
PrologEndLoc = MI->getDebugLoc();
} }
} }
} }